//prove that it worked
System.out.println(symL.seqString());
}catch (IllegalAlphabetException ex) {

/*
* this will occur if you try and transcribe a non DNA sequence or translate
* a sequence that isn't a triplet view on a RNA sequence.
*/
ex.printStackTrace();
}catch (IllegalSymbolException ex) {
// this will happen if non IUB characters are used to create the DNA SymbolList
//send the exception to the form through the CGI.
//catch the exception for the PROTEIN reverse translation.
ex.printStackTrace();
}
}
}